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CVE-2026-27492

Lettermint Node.js SDK is the official Node.js SDK for Lettermint. In versions 1.5.0 and below, email properties (such as to, subject, html, text, and attachments) are not reset between sends when a single client instance is reused across multiple .send() calls. This can cause properties from a previous send to leak into a subsequent one, potentially delivering content or recipient addresses to unintended parties. Applications sending emails to different recipients in sequence — such as transact
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2abfff03315503b30f8942da147ccdfe8a7bceec1973a474ac02e96f06b2ee9c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"lettermint-node","vendor":"lettermint","versions":[{"status":"affected","version":"< 1.5.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b82c15e413d109b09a3595f597a5436eb6e8929c085bbb9a55bc9e07dd5a304e · sha256:ad1dad3e087f88f8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b82c15e413d109b09a3595f597a5436eb6e8929c085bbb9a55bc9e07dd5a304e · sha256:ad1dad3e087f88f8… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-488","description":"CWE-488: Exposure of Data Element to Wrong Session","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b82c15e413d109b09a3595f597a5436eb6e8929c085bbb9a55bc9e07dd5a304e · sha256:ad1dad3e087f88f8… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/lettermint/lettermint-node/blob/main/CHANGELOG.md#151-2026-02-20","tags":["x_refsource_MISC"],"url":"https://github.com/lettermint/lettermint-node/blob/main/CHANGELOG.md#151-2026-02-20"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b82c15e413d109b09a3595f597a5436eb6e8929c085bbb9a55bc9e07dd5a304e · sha256:ad1dad3e087f88f8… · /containers/cna/references/2
{"name":"https://github.com/lettermint/lettermint-node/commit/24a17acbc2429c5eb30391f9df3dc0ea7aaf4de1","tags":["x_refsource_MISC"],"url":"https://github.com/lettermint/lettermint-node/commit/24a17acbc2429c5eb30391f9df3dc0ea7aaf4de1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b82c15e413d109b09a3595f597a5436eb6e8929c085bbb9a55bc9e07dd5a304e · sha256:ad1dad3e087f88f8… · /containers/cna/references/1
{"name":"https://github.com/lettermint/lettermint-node/security/advisories/GHSA-49pc-8936-wvfp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/lettermint/lettermint-node/security/advisories/GHSA-49pc-8936-wvfp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b82c15e413d109b09a3595f597a5436eb6e8929c085bbb9a55bc9e07dd5a304e · sha256:ad1dad3e087f88f8… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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